Carbureter.



H. BINGHAM.

CARBURTER.

APPLICATION FILED JULY 16,1910.

998,457, Patented Jl'lly 18, 1911.

HERBERT vBINGrI-IAM, OF LAKEWOOD, OHIO.

GARBURETER.

' Specification of Letters Patent.

Patient-ed July 1S, 191 1.

Application filed July 1.6, 1910.` Serial No. 572,301.

,To all whom it may concern:

Be it known that. I, HERBERT BINGHAM., a subject of the King of Great/Britain, resid* ing at Lakewood', in the county of Cuyahoga. and State of Ohio, have invented certain new and useful lmprovements in Carburet-crs; and 'I dohereby declare the followingl to be a full, clear, and exacti description of the invention, such as will enable others skilled in thel art towhich it appertains to make and use the same.

This invention relates to carbureters, and

has for an object. to provide a carburetor with improved atomizing means and improved "means for equalizing the exhaust between the mixing chamber and ythe fuel chamber,A and also between the fuel chamber and the outlet port. i

A further object of the invention is to provide a fuel chamber having the usual and ordinary float Controlling the fuel supply vvalve with the mixing chamber Vand alined outlet port contained concentrically within the fuel chamber, and with adjustable passages leading from the outlet port to the fuel chamber, and from the mixing chamber to the fuel chamber.

A further object of the invention is to provide improved interacting air and fuel inlet ports with means for controlling the air inlet.

A further object of the invention is to provide. improved means for controlling the admission of fuel to the fuel ehamber.

A further object of the invention is to provide improved means for controlling and regulating the supply of air into the fuel chamber.

llVith bese and other objects in View the inventio comprises certain novel construetions, combinations; and arrangement ofparts as will be hereinafter more fully described and claimed. y

In the drawings: Figure `1 is a View of the improved carburetor in side elevation.` Fig. 2 is a vertical diametrical sectional View taken on line 2-2 of Fig. 1. Fig. 3 is a diametrical sectional View taken at right angles to the section of Fig. 2 and as indicated by line 3-3 of Fig. 2. Fig. L1 is a horizontal sectional View taken on line 4-4 of Figs. 1, 2 and 3 looking downwardly and'showing position lines for Figs. 2 and 3. Fig. 5 is a view in side elevation of the oriiiced nut' employed for controlling the admission of airfrnto the fuel chamber".`

Fig. 6 is a yView in inverted plan of the nut shown at'Fig. 5 as seen along arrow G.

Like characters of reference designate corresponding parts throughout the several views.

A fuel ehamberl() is provided open at the top and closed by means of a head 11 secured thereon in any usual and'ordinary manner, as by the screws 12. The head 11 is integral or rigidly connected with the outlet port. 13 connected with vthe cylinders of the explosive engine inthe usual and -ordinary manner. and controlled by means of a fiap valve 1l mounted upon a rotatable shaft 15 and controlled by means of a lever 16. the movement being limited by means of a lug 17 outstanding from the port member 13, and with arms 13 and 19 carried by the lever 16 engaging such lug. v

Removably mounted within the fuel chamber 10 is a mixing` chamber member 20. such removability beingI provided by the screw threaded connections 21 with the bottom of the mixing chamber l0. The upper end of the mixingv chamber 20 receives the sleeve 22 which forms the lower end 'and continuation of the-outlet port member 13. so that the inner bore of such mixing chamber member 20 and the outlet port member 13 are substantially continuous and coaxial.

Concentrically within the mixing. chamber member 20 1s a fuel nozzle 23 supported therein by means of braces 24: which are tubular to form passages 25 for the passage of fuel from the fuel reservoir 10 into the fuel nozzle 23. Forconvenienee of production the longitudinal borel of the fuel nozzle 23 is continued throughout the mear.

ber` and is closed at t-he lower end .by screw 2G. The lower end of the fuel nozzle member extends downwardly below the mixing chamber member 2()-- in'to the 'air chamber 27..- which receives a lconstant. supi ply of air through the pipe 28 passing through an annular about the fuel nozzle 23. This air inlet 2.3

`passage 29 upwardly` ioo is positioned by means of the nut 30 and jam nut 31, and is provided at its upper end with an outwardly-flaring baffle head 33. The mai-n' or 'relief supply of air is admit-- ted dire-ctly t o the chamber 27 by an elbow i pipe 32 forming an inlet passa-ge 34. which elbow pipe is secured to the air chamber 1n any approved .mannen as by the .screws 35 through the ears 3G. Within the supply assa-Ue 34 an air controllin valve" 37 is.

mounted uponI a rotatable shaft 38 controlled by the lever 39 from any source.

Communicating with the fuel chamber lO is an offset chamber 40 connecting by means of the pipe 41 with the source of fuel. supply not shown, and providing a valve seat 42. Vertieally reciprocatable within the offset chamber 40 is a valve stem 43 carrying a conical or needle valve 44 adapted to close the valve seat 42, and actuated `by means of a spring 45 which serves to hold the valve 42 yieldingly to seat. The valve stem 43 extends upwardly through an adjustable nut 4G, upon which is secured a second nut or cap 4f) screw threaded to receive a screw 48 controlled by a cross head or other means of applying power to adjust the screw to serve to lock the nut 47. To lift the valve 44 a lever 50 is fulcrumed as at 51,.and bifurcated to form arms 52 embracing the mixing chamber 20, and upon which rests the float 53. The nut 46 is provided with passages or orifices 54 whereby communication is established between the offset chamber 40 to the atmosphere.

At one side of the discharge port member 13 a lug i5 is constructed having an angle passage 56 formed therethrough communi- :ating at one end with the outlet port member and at the other end with the fuel chamber, and controlled by a kmnrled'screw 57. At some other point shown at the opposite side, the outlet port member is proA vided with a. rib 58 also provided with an angle passage 59 con'nnunicating at one end with the outlet port member above the valve '14, and its opposite end with the fuel chamber, and also provided with a similar knurled screw (3() whereby the passage is controlled.

In operation the parts assembled as shown at Figs. 2 and 3 will permit the entry of fuel by the valve 44 into the ott'set chamber 40 and fuel chamber 10, and the rise of fuel within such chamber will lift the float 53 until the. proper height is obtained, when the valve 44 Will be closed by the spring 45. The proper height for the fuel within t-he fuel chamber is, of course, j ust below the line passing tl'irough the upper extrem# ity of the fuel nozzle E23. If now the 'valve 14 is opened and the engine turned over air will be admitted through the passage 28 to atomize and draw fuel from the fuel nozzle 23' in the usual well-linown manner, which passes upwardly through the mixing chamber and through the outlet port to charge the cylinder. lVhen the cylinder has lt is well known that it is desirable to control the pressure within the fuel chamber to emresptmd with the pressure within the mixing chamber and the. outlet port. 'lo accomplish this, the angle passages 56 and f) are provided whereby the pressure within the fuel chamber is constantly maintained equal to that within both the mixing chamber and the outlet passage. lt will be noted that. these passages are entirely imlependentl se that by manipulating the -screws 57 or (3() the passages may be controlled and pressure regulated as may be found necessary or desirable. Particular emphasis is also laid upon the separability of the several parts which permits interehangeability in case of breakage or other damage, and also permits the removal of parts for cleaning as may be found desirable.

. lVhat l claim is l. ln a 4eartm1-eter, a fuel chamber, ahead adapted to close the top of the fuel chamber and carrying an outlet porti, a valve disposed within the outlet port, and independent reliet conduits both communicating with the fuel chamber, one communicating with the outlet port below the valve and the other communicating with the outlet port above the valve, and independently adjustable.

2. In a carlnnreter, a fuel chamber, an outlet passage extending upwardly from the fuel chamber, a carbureting chamber forming` a continuation of the outlet passage, a. valve disposed within and adapted to close the outlet passage, independent conduits communicat-ing with the fuel chamber, one comnnmicatingl with the earbureting chamber and the other with the outlet passage above the valve, and means to independently regulate the passages through the conduits.

In testimony whereof I allix my signature in presence of two witnesses.

ll ERBERT BINGVII A M.

l litnessesz l. C. Boswon'rn, ll. C. lVoonnUrr. 

